But fans trying to buy the £9.99 T-shirt on the club's online shop spotted the glaring omission.

The Anfield club has hundreds of supporters on the island.

Ynys Mon AM Ieuan Wyn Jones said: "I am obviously extremely surprised. There are lots of Liverpool supporters on Anglesey and they will be horrified that such a big club as Liverpool has made such an awful omission.

"The danger is that Liverpool supporters on Anglesey might change their allegiance to Everton," he added.

Mr Wyn Jones, who left Ysgol y Berwyn, in Bala, to attend Liverpool Polytechnic, said: "I was at college in Liverpool and I do have a soft spot for the city."

He said last night: "Liverpool Football Club, like many Premiership clubs in the North West of England, has a lot of supporters on Anglesey. I would expect a club like this to be more sensitive to their North Wales fans."

Last night a Liverpool FC spokesman said: "It was purely an oversight in the design process and we apologise to anyone who has been offended by the omission."

The row over the T-shirt's map echoes the omission of Wales from a European Union map last year.